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-rw-r--r--fs/open.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/fs/open.c b/fs/open.c
index 0285ce7dbd51..f1c2f855fd43 100644
--- a/fs/open.c
+++ b/fs/open.c
@@ -733,6 +733,12 @@ static int do_dentry_open(struct file *f,
return 0;
}
+ /* Any file opened for execve()/uselib() has to be a regular file. */
+ if (unlikely(f->f_flags & FMODE_EXEC && !S_ISREG(inode->i_mode))) {
+ error = -EACCES;
+ goto cleanup_file;
+ }
+
if (f->f_mode & FMODE_WRITE && !special_file(inode->i_mode)) {
error = get_write_access(inode);
if (unlikely(error))